Cyber Incident Victim: Centre Hospitalier d’Argenteuil
Date:
Dec 2022
Location:
France
Summary
Centre Hospitalier d’Argenteuil detected an intrusion affecting part of its network, prompting immediate containment measures. Investigations revealed no evidence of data compromise. IT teams collaborated with national cybersecurity experts to safeguard patient, partner, and employee interests. Hospital operations remained uninterrupted, with all services fully functional. Authorities were notified, and legal complaints filed, while the organization publicly disclosed the incident to maintain transparency.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
On December 7, 2022, Centre Hospitalier d’Argenteuil detected an intrusion targeting a segment of its computer network, aligning with similar incidents affecting other hospitals and organizations. The hospital’s Territorial Information Systems Directorate teams immediately implemented containment measures to isolate the attack. Initial investigations conducted by the hospital confirmed no evidence of data compromise at that stage, though the full scope of network access remained under assessment. Authorities including the French National Agency for the Security of Information Systems (ANSSI) were notified of the incident, and the hospital filed an official complaint with the Republic’s prosecutor on the same day. The intrusion did not disrupt clinical operations or hospital services, which remained fully functional throughout the event.
The hospital’s IT teams prioritized collaboration with ANSSI specialists to safeguard patient, partner, and employee interests, maintaining continuous monitoring of systems. No further technical details about the attack vector, duration of unauthorized access, or specific compromised systems were disclosed publicly. Management emphasized transparency by issuing a press release but declined interview requests or additional commentary. The incident’s primary operational impact centered on response coordination rather than service delivery interruptions. Containment efforts focused on securing network segments while preserving hospital functionality, with no reported ransom demands or data exfiltration claims corroborated during the initial response phase.